JPH11102210A - Numerical controller with wireless display function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a numerical controller(NC) with which the operating state of the NC can be monitored from a distant place or plural places. SOLUTION: An NC 10 is provided with a transmitter 73, and the display data of the NC 10 are wirelessly transmitted to a personal computer(PC) in real time so that a cord as a connecting means is unnecessitated. Thus, the operating state of the NC can be easily monitored from the distant place. Further, the PC are arranged at the plural places so that the operating state of the single NC can be monitored at the same time.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a numerical control device.

[0002]

2. Description of the Related Art A numerical controller incorporating a display for displaying display data of the numerical controller integrally, and
2. Description of the Related Art Numerical control devices in which a display for displaying display data of the numerical control device is connected to a main body of the numerical control device by wire and are separately provided are well known.

In a numerical controller incorporating a display integrally, it is not possible to dispose the display at a distance, and in a numerical controller having a display connected to the main body of the numerical controller by wire, the display must be arranged at a certain distance. Is possible, but the distance is limited by the length of the cord, and it is difficult to connect multiple displays to a single numerical control device. A problem arises when it is desired to monitor from a different location or when monitoring at multiple locations.

[0004]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to solve the above-mentioned disadvantages of the prior art and to provide a numerical control device capable of monitoring the operation state of the numerical control device from a remote place or a plurality of places. Is to do.

[0005]

The numerical control device of the present invention has achieved the above-mentioned object by a configuration characterized by including a transmitter for wirelessly transmitting display data of the numerical control device to a receiver in real time.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a functional block diagram showing a main part of a numerical controller 10 according to an embodiment to which the present invention is applied.

[0007] The processor 11 is a processor for controlling the numerical control device 10 as a whole.
The system program stored in M12 is read, and the numerical controller 10 is entirely controlled according to the system program.

The RAM 13 stores temporary calculation data. The frame memory of the RAM 13 further stores display data of the numerical controller 10, for example, a command line of an NC program being executed, position information of a tool, and information of machining. Image data such as animation indicating the progress is refreshed and rewritten at predetermined intervals.

The CMOS memory 14 is configured as a non-volatile memory that is backed up by a battery (not shown) and retains the storage state even when the power of the numerical controller 10 is turned off.

The interface 15 is an interface for an external device, and is connected to an external device 72 such as a paper tape reader and a paper tape puncher. The processing program is read from the paper tape reader, and the processing program edited in the numerical controller 10 can be output to the paper tape puncher.

[0011] Programmable machine controller 1
Numeral 6 controls the machine tool by a sequence program built in the numerical controller 10. That is, in accordance with the functions instructed by the machining program, these sequence programs convert the signals into necessary signals on the machine tool side, and output the signals from the I / O unit 17 to the machine tool. Various actuators on the machine tool are operated by this output signal. Further, it receives signals from limit switches on the machine tool side and various switches on the machine operation panel, performs necessary processing, and passes the signals to the processor 11.

The present position of each axis, alarm, parameter,
An image signal such as image data is transmitted to a CRT / MDI unit 70.
Is sent to the display device, and is displayed on the display device. The interface 18 receives data from the keyboard of the CRT / MDI unit 70 and passes the data to the processor 11. The interface 19 is connected to the manual pulse generator 71 and receives a pulse from the manual pulse generator 71. The manual pulse generator 71 is mounted on the machine operation panel on the machine tool side, and is used for manually positioning the movable part of the machine precisely.

The axis control circuits 30 to 32 receive the movement commands of the respective axes from the processor 11 and output the commands of the respective axes to the servo amplifiers 40 to 42. The servo amplifiers 40 to 42 receive the command and drive the servo motors 50 to 52 of each axis. The X, Y, and Z axis servo motors 50 to 52 have built-in pulse coders for detecting position and speed, and feedback signals from the pulse coders are transmitted to axis control circuits 30 to 3.
2 is fed back. Each of the servo control processors built in the axis control circuits 30 to 32 performs a position loop based on these feedback signals and the aforementioned movement command,
Each process of the speed loop and the current loop is performed, a torque command for final drive control is obtained for each axis, and the positions and speeds of the servo motors 50 to 52 of each axis are controlled.

The spindle control circuit 60 outputs a spindle speed signal to a spindle amplifier 61 in response to a spindle rotation command and a spindle orientation command. Upon receiving the spindle speed signal, the spindle amplifier 61 rotates the spindle motor 62 at the commanded rotation speed. Further, the rotational position of the spindle motor 62 is positioned at a predetermined position in accordance with the orientation command.

The transmitter 73 has an interface 74.
, And reads out data stored as an image in the frame memory of the RAM 13 at predetermined intervals and wirelessly outputs the data.

FIG. 2 is a block diagram showing a personal computer 75 as an example of an image receiver for receiving image data output from the numerical controller 10 via the transmitter 73.

The ROM 77 stores a startup program for booting the operation program stored in the hard disk 79 into the RAM 78. When the power is turned on, when the processor 76 is started, this startup program first operates. Then, the operation program is read from the hard disk 79 to the RAM 78 via the bus 84, and thereafter, the operation program is started to read and execute various application programs and the like stored in the hard disk 79.

In the free space of the RAM 78, in addition to the resident operation programs, application programs and the like stored in the hard disk 79 are read as necessary, and further, operation data and the like required for various processes are temporarily stored. Is done.

The display 83 is constituted by a CRT display device or the like, receives instructions from the processor 76 via the interface 82 and the bus 84, and displays necessary information. Input of data and commands is performed via a manual data inputter 85 constituted by a keyboard or the like.

The receiver 81 is a receiver for receiving data wirelessly transmitted from the numerical controller 10.
It is composed of a TV tuner card for a personal computer and the like.

Various data transmitted from the numerical controller 10, for example, image data such as a command line of an NC program being executed, position information of a tool, and animation indicating the progress of machining are received by a receiver 81. The personal computer 75 via the interface 82
, And is displayed in real time on a display 83 such as a CRT display device.

FIG. 3 shows an example of data displayed on the display 83. The area on the left is an animation drawing area to show the moving path of the tool and the current position of the tool, and the area on the right is a display area for displaying rasterized character data. Several command lines including the machining block being executed are displayed, and detailed numerical data on the current tool position and the like are displayed in the lower half. The contents and arrangement of data displayed on the display 83 are exactly the same as those displayed on the CRT / MDI unit 70 of the numerical controller 10.

Since the data transmission from the numerical controller 10 to the personal computer 75 is performed wirelessly, unlike the conventional numerical controller in which the display is connected to the main body of the numerical controller by wire, the influence of the length of the cord is different. The operation of the numerical controller 10 can be monitored by disposing a personal computer 75 serving as an image receiver at an arbitrary place without receiving the information.

A personal computer 7 is used as an image receiver.
5, a general television receiver equipped with a television tuner or the like can be used. Further, if receivers adapted to the same channel are provided at a plurality of locations, the operation of the single numerical controller 10 The condition can be monitored simultaneously in different places.

Also, there is a well-known image receiver which can divide a screen of a single display device such as a CRT display device and display images of two or more channels at the same time. For example, even when there are a plurality of numerical control devices 10, by setting a channel for each numerical control device 10, a plurality of numerical control devices 10 can be simultaneously monitored by a single image receiver.

[0026]

According to the present invention, the operating state of a numerical controller can be easily monitored from a remote place, and the operating state of a single numerical controller can be controlled by a plurality of receivers. It can be monitored at the same time.

[Brief description of the drawings]

FIG. 1 is a functional block diagram showing a main part of a numerical control device according to an embodiment to which the present invention is applied.

FIG. 2 is a block diagram illustrating an example of a personal computer as an example of a receiver that receives data output from a numerical controller.

FIG. 3 is a conceptual diagram showing a display example on the personal computer of the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Numerical control apparatus 11 Processor 12 ROM 13 RAM 14 CMOS memory 15 Interface 16 Programmable machine controller 17 I / O unit 18 Interface 19 Interface 21 Bus 30 Axis control circuit 31 Axis control circuit 32 Axis control circuit 40 Servo amplifier 41 Servo amplifier 42 Servo amplifier 50 Servo motor 51 Servo motor 52 Servo motor 60 Spindle control circuit 61 Spindle amplifier 62 Spindle motor 70 CRT / MDI unit 71 Manual pulse generator 72 External device 73 Transmitter 74 Interface 75 Personal computer 76 Processor 77 ROM 78 RAM 79 Hard disk 80 interface 81 receiver 82 interface 83 display Container 84 Bus 85 Manual data inputter

Claims (1)

[Claims] 1. A numerical controller comprising a transmitter for wirelessly transmitting display data of the numerical controller to a receiver in real time.